Oh yeah the category page I got rid of, there's too much on it so I just made a static page. But here is, which is where that error occurs:
simplysyrups.electricescape.org/online-store
Re menu, yeah I thought I might have to do float:left, but that then makes the text only dropdown menu's float left as well. Looking at your demo, and menu.css on your demo doesn't have any float:lefts on anything, and you've got the image menu's horizontally aligned but the text only menu (template) vertically aligned, with multiple columns.
Oh well anyway, doesn't matter I can just use float left, it looks okay, haha.